Absorbing agent, method for manufacturing an absorbing agent and use of an absorbent agent
AssigneeSiemens Aktiengesellschaft
InventorsRalph Joh, Rüdiger Schneider
Life of this patent
Estimating the term…
Abstract
An absorbent agent is provided. The absorbent agent is particularly for separating carbon dioxide from the flue gas of a fossil-fired combustion device. The absorbent agent comprises a two-component mixture including a free amino acid and an amino acid salt, wherein the free amino acid exhibits a surplus compared to the amino acid salt based on the molar concentration. This creates variability in the PCBN value, which may be attained through different absorption and desorption process temperatures. A method for manufacturing the absorbent agent is also provided.
Claims8
A method for manufacturing an absorbing agent for the selective absorption of carbon dioxide from a flue gas of a combustion plant, comprising:
- completely converting an amino acid into an amino acid salt by an equimolar addition of a lye;
- and
- producing a mixture of amino acid salt and free amino acid by further addition of an amino acid which includes a different substituent than the amino acid salt, such that the amino acid salt and the free amino acid are present concurrently.
A method for manufacturing an absorbing agent for the selective absorption of carbon dioxide from a flue gas of a combustion plant, comprising:
- completely converting an amino acid into an amino acid salt by an addition of a lye;
- and
- producing a mixture of amino acid salt and free amino acid by further addition of an amino acid which includes a different substituent than the amino acid salt, such that the amino acid salt and the free amino acid are present concurrently.
Dependencies are inferred from the claim text.